Oligomers and homopolymers of meta- or para-...

Details Oligomers and homopolymers of meta- or para-... Oligomers and homopolymers of meta- or para-...

C - Chemistry, Metallurgy

08

F

402/182, 260/455

C08F 126/02 (2006.01) C08F 8/00 (2006.01) C08F 112/14 (2006.01) C08G 18/72 (2006.01)

Patent

CA 1216590

OLIGOMERS AND HOMOPOLYMERS OF META- OR PARA-ISOPROPENYL- - .alpha., .alpha.-DIMETHYLBENZYLISOCYANATE Abstract of the Disclosure Aromatic solvent-soluble linear oligomers or homopolymers of meta- or para-isopropenyl-.alpha.,.alpha.-dimethyl- benzylisocyanate characterized by high isocyanate content are disclosed. Such oligomers or homopolymers are made by catalytic solution polymerization of the monomer in methylene chloride and/or toluene solution at a tempera- ture of from about -80°C to about -25°C, followed by low- temperature neutralization of the polymerization catalyst.

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